Discrete Discr Outputs | Schneider Electric SR2MAN01 manual

LD Language Elements

Discrete (DISCR) Outputs

Description	Discrete Outputs correspond to the smart relay output relay coils (connected to the
	actuators). These outputs are numbered from 1 to 9, then from A to G, according to
	the smart relay and any extensions.
	Any Discrete output can be used, in the program, indifferently either as a coil or a contact.

Use as a Coil To use a Discrete output as a coil, four modes are available:

zContactor mode,

zImpulse relay mode,

zLatch mode,

zUnlatch mode.

Contactor mode:

Symbol of a Discrete output, used as a coil in contactor mode:

[ Q-

The coil is energized if the contacts to which it is connected are conducting.

Otherwise it is not energized.

Impulse relay mode:

Symbol of a Discrete output, used as a coil in impulse relay mode:

Q-

Pulse energization, the coil changes state on each pulse it receives.

Example: Switching a lamp on and off with a pushbutton:

i1 Q1

A push button is connected to input I1 and a lamp to output Q1. Every time the button is pressed, the lamp switches on or off.

98	SR2MAN01 11/2007

Image 85

Schneider Electric SR2MAN01 user manual Discrete Discr Outputs, Smart relay and any extensions

Contents

11/2007 Zelio Logic Smart Relay Table of Contents Default Menu Configuration MenuClear Program Menu Transfer Menu Implementing a Basic Application DiagnosticsDebugging an Application Sample Application Important Information Safety Information Safety Information At a Glance About the Book Chapter Name Initial Power up and Discovering Initial Power up and DiscoveringPresentation Topic Subject of this Chapter Whats in this Chapter? Preliminary Advice Safety Risk of Electric SHOCK, Explosion or Electric Arcing Involuntary Operation of Equipment U 2 5 S E P 1 6 4 Presentation of the Smart Relay Front PanelIntroduction Description Smart Relay Front Panel An Active input or output is displayed in reverse video Description of the LCDPrompt Element Regulated Characteristics and ConnectionsRectified and filtered N / S T O P Control Keys on the Front Panel of the Smart RelayShift Key Menu/OK Key Zx Keys Round for a link only in programming modeAre marked above the keys Navigation keys are used to move left or right, down or up Contextual Using the contextual menu functionsMenus Contextual menu appears Illustration Ins + Param Del Introduction Language Selection ExamplesStep Action View E a R P R O G A N S F E R R S I O N N G U a G E Or then D E O P Modification of Date and Hour Then Times in LD modeView A N G E D / H U L 2 0 0 2 7 3 0 s Secs / WK View 3 4 B C D E Subject of this Section Whats in this Part? Functions Accessible from the Front PanelChapter Chapter Name Line flashes to indicate where you are positioned Overview of the Functions Accessible from the Front PanelTo return to the previous menu, press left navigation key Configuring Certain menus are specific to either LD or FBD modeDifferences Between LD FBD Modes Extensions Input/Output Screen Inputs-Outputs Screen Programming type LD or FBD Mode Stop or RUN3 4 5 N 2 2 S E P 1 5 5 Main Menu Access to Text and Display screen Switching Between ScreensL u e c o u n t e r T e 1 1 / 2 0 0 Result Param is displayed at the bottom of the screen Press the Shift key white key to display the contextual menu Subject of this Chapter Programming Menu Chapter? Smart relay allows you to enter 120 line Ladder diagrams Rules for Entering Ladder DiagramsFollowing manner Rules Incorrect Correct M1----I4-I5-I6-Q1 Description Entering an Element Method for Entering a Contact or CoilIns Del Modifying an element Initialization Deleting an Element Steps 7 to 9 are only necessary when entering a coil Description Entering a Link Entering a Link Deleting a Link Replacing a Link with a Contact Entry of Function Block Parameters Description Accessibility of parameters Ins. + Param Del Entering Parameters on Creation of the BlockModifying Parameters Existing Blocks To modify the parameters of an existing element, simply Deletion Deletion and Insertion of Diagram LinesInsertion Parameters Menu LD modeParameters menu RUN Mode FBD mode Parameter Modification Monitoring Menu To modify the parameters, proceed as follows Startup RUN/STOP MenuFollowing three choices for starting the program Off Smart Relays Without Screen O P Configuration Menu Password to perform certain operations Password Menu Password Entering PasswordE a R 1 Removing 3 0 M I N U T E S E a R 2 Description Filter-Type Selection Filter MenuFiltering Commutation Response time Slow Fast Zx Keys Menu Description Zx Keys in RUN Mode Illustration C L E = 0 5 x 0 2 m S Watchdog Cycle Menu Actions Cycle Time Watchdog Configuration Clear Prog Menu Clear Program MenuDescription Clearing the Program L I O M E M O R Y Transfer MenuM O R Y Z E L I O Module → Backup Memory Transfer RUN, remove the Eeprom cartridge SR2 MEM02 Backup Memory → Module Transfer Application Absence of backup memoryIncompatible With firmware on MEM02 Use of SR2 MEM01 and SR2 D U L E S R 3 B 2 6 1 B D Version MenuR D W a R E 0 1 R M W a R E 0 1 1 4 1 B D A L I a N O Language Menu Fault Menu Default MenuFault 0 0 Reset to Zero of the Fault Counter Illustration Fault Types Default Menu A N G E Change DATE/TIME Menu Example Clock ConfigurationSteps Description Smart relays with a clock Change SUMMER/WINTER Menu To configure automatic time change, proceed as follows Configuration of the Time Change Chapter Chapter Name LD Language Elements LD Language LD Language Elements Diagram Panel of a smart relay Ladder DiagramsIntroduction Composition Normally closed mode Normally open modeDiscrete Inputs Use as a Contact State of a ModificationContact Zx Keys Normally closed mode reverse state is active Normally open mode direct state is inactivePlace the mouse over the letter representing the contact They can be used as internal variables Auxiliary RelaysContact Impulse relay mode Contactor modeLatch mode Unlatch mode Normally open mode Following inputs I1, I2, I3, I4, I5 and IB Modifying the Mode of a Coil or a Contact Initialization LatchingActivated Window Smart relay and any extensions Discrete Discr Outputs SQ1 Window associated with the output Timers Coil RC Reset Input Coil TT Command InputCommand input Reset input Type of timer Unit Symbol Form Maximum value Preset valueTime unit Parameter lock Timer type Command input timing diagramNumber Parameter Description Time unit Off delay type C Following diagram shows the operation of the type a timerFollowing diagram shows the operation of the type C timer Active, control held down type a On pulse one shot type B Combination of a and CTiming after pulse type W Following diagram shows the operation of the type L timer Following diagram shows the operation of the type D timerFlasher unit, control held down synchronously type D Flasher unit, Press to start/stop, Synchronous type d Normally closed mode inverse state is active Following diagram shows the operation of the type T timerTime on addition type T Current values is are zeros Preset value t Illustration Timers configuration screen Counters Coil RC Reset Initial Counter State InputCoil CC Counting Pulse Input Coil DC Counting Direction input Every time key Z1 is pressed, the counter starts from Reset Initial Counter State inputCounting direction input Contact is conducting as long as Type of counting Counter reset input timing diagram Number Parameter Description Command inputCounter output Counter output timing diagram Initialization R Counting Current value is zero Mode toward the preset valueExamples Fast Counter Coil RK1 Reset initial counter state input Coil TK1 Enable function inputEnable function input 120 Cycle type Symbol of the Duration of pulse parameterDuration of pulse Symbol of the Parameter Lock parameter Verrouillé Current Counter Value Counter reset to its initial stateNumber Parameter Description Cycle type Single/Repetitive Up-Counting in Single Cycle Mode Up-counting in Repetitive Cycle Mode Down-Counting in Single Cycle Mode Down-Counting in Repetitive Cycle Mode TK1 RK1 Counter Comparators Analog Comparators Xl Comparison Operator Configuration from Front PanelX1 H ≤ x2≤ x1 + H Values to compare Hysteresis parameter Reference valueParameter locking ≤ ξ 2 ≤ x 1 + H N a L O G= 4 = R = 1 = I e N a L O G ≤ x = I d = I e Comparison operator no is chosen, that is ≤ Temperature is below 20 C Symbol of the normally open contact, representing a clock Mode or its inverse state mode normally closed, see belowSymbol of the normally closed contact, representing a clock Clocks Relay D / W O N O F FNumber Parameter Operating ranges Interval Start on Friday at End on Monday at Day at 2 3 2 3 4 These function blocks are used as coils TextsOnly the block with the highest number is displayed Display from the Text screen to the inputs-outputs screen Display Activation Display Activation coil Display Deactivation coilDisplay deactivation Used as a Coil LCD Screen Backlighting Change to Summer / Winter Time AccessCheck the Activate Summer/Winter Time Change box Europe Europe Modifying the Mode of a Coil or a Contact Initialization Smart relay Modbus Inputs/OutputsWords sent by the master Message Use of the Coil Command input Configuration from the Front Panel Initialization Creating and Debugging an Application Implementing a Basic Application Works a two-way switch Presentation of Ladder DiagramsNormal electrical diagram Ladder diagram Operation Can be used in place of two position switches Module Wiring Below, an illustration of smart relay wiringMon Input I wired on the smart relay Using the Reverse Function Ladder diagram 1 Light off when idle Electrical diagram Connection to the smart relayPractical Example Off delay Operating Electrical diagram Notation Used by the Smart Relay Electrical symbol Ladder symbolEquivalencies Between Notations 156 Description Go to the Programming Screen Application Implementing a Two-way SwitchStep Action Screen Comment To enter the contacts in the first line, proceed as follows Entering Contacts First Line Step Action Screen Fois Entering the Coil and Joining it to the Contacts To enter the contacts in the second line, proceed as follows Entering Contacts Second Line To join the second line to the first, proceed as follows Joining the Second Line to the FirstSecond 1 in the second line Flashes To launch the program, proceed as follows Launching the ProgramProgramming is selected Debugging an Application N L D Module in RUN Mode Viewing Status Menus RUN mode Viewing Ladder Diagrams Dynamic Mode Ladder DiagramsChanging Ladder Diagrams 3 4 5 N 2 2 S E P 1 5 5 Using Z Keys as Pushbuttons Accessing Dynamic Mode Function Block ParametersPresentation Dynamic Mode Dynamic Mode MenusMenus Not. Here is a summary table Event of a power failure Smart Relay Reaction to a Power FailureOption defined in the parameters window With the clock function block 1 configured as follows Safety ModeExample of a non-locked coil Saving and Transferring Ladder Diagrams Backup and Transfer of Ladder Diagrams19Memory optional and vice-versa This allows Sample Application Specifications Inputs Specification AnalysisButton Outputs Smart relay label Name Special function blocks Description Implementing Ladder Diagram Implementing the Solution Function Blocks O F F 1 2 0 Compares the measured CO 2 level Function block Comment Analog function block A1With the threshold value 8.5 Fan operating duration if the CO Chapter Name Diagnostics 187 Diagnostics Smart Relay Messages 188 Frequently Asked Questions 189 Smart Relay Messages Relay, their possible causes and how to remedy the problemMessage Cause Corrective action Questions are listed here Frequently Asked Questions Asked Questions FrequentlyAnswer This section contains product-related appendices AppendicesAppendix contains the following chapters Appendix? Subject of this CompatibilityChapter Version Smart relay firmware version Type of memory cartridge Version of firmware compatible Memory Cartridge to Smart RelaySmart relay firmware language Memory cartridge Index Change DATE/TIME Change SUMMER/WINTER, 83 Clear Prog Menu 35007143